Printing machine



Sept. 14, 1937. w. F. HUCK PRINTING MACHINE Filed Dec 22, 1934 Patented Sept. 14, 1937 v,

UNITED STATES PATENT OFFICE PRINTING MACHINE William F. Huck, Richmond Hill, N. Y., assignor, by mesne assignments, to R. Hoe & 00., Inc., New York, N. Y., a corporation of New York Application December 22, 1934, Serial No. 758,743

' 17 Claims. (01. 1o1 24s)' This invention in general relatesto printing projection 23 of the gear 2| and which may be machines and more particularly to means forconsidered to be a component part of the gear 2 providing a convenient and simplified mecha- As best shown in Figure 1, it will be seen that nism fox-expeditiously efl'ecting relative movement the toothedring 22 is provided with, a plurality or rotation between a cylinder and its driving of holes 26, 2| which are in opposed relation 5 gears in order to secure accurate register in to-slots 29, 24 respectively in the gear 2|. In printing. addition, the ring 22 has another'slot 25 through It is also an object of the invention to 'prowhich the bushing I1 is protruded, the said bushvide a cylinder. gear adjusting mechanism of ing being received in a hole 28 provided in the generally improved construction,v whereby the ring 2|, Through the registering holes and slots 10 device will be simple, durable and inexpensive 26, 29 and 21, 24-, screws 3|, 32 are passed, the in construction, as well as convenient, practical, said screws being threaded into fixed ring serviceable and eflicient in its use. and having elongated heads (Figure 3) which With the foregoing and other objects in view, are freely accommodated in the holes 26, 21 and which will appear as the description proceeds, press against the face of the gear 2| in order 15 the invention resides in the combination and to removably and adjustably fastenthe latter arrangement of parts, and in the details of conto the fixed ring The toothed i is struction hereinafter described and claimed, it ther provided with an additional series of slots, being understood that various changes in the one of which is shown as at 33, through each of precise embodiment of the invention herein diswhich a screw 34 is passed, the said'screw being 20 closed may be made within the scope of what threadedly engaged in the gear 2| and normally is olaimed without departing-from the spirit of serving to lock the gears 2|, 22 together as a the invention. unit or to free same for relative angular move- The preferred embodiment of the invention is ment, when desired, as appear hereinafter.

illustrated in the accompanying drawing, where- The adjusting stud I6 is normally retained in 2 in: the operative position shown by a pl 35 which Figure 1 is a fragmentary end elevational isfastened by screws 36 to the outer gear 22. view, partly insection, of a cylinder to which an In order to determine with accuracy the extent of embodiment of the invention has been applied; the adjustment of the cylinder and the gear 2|,

Figure 2 is a. transverse sectional view, taken relatively to each other, a small plate or bracket 30 3 arrow3 ofFigure 1; and

on the lineand as seen in the direction of the 31 is secured to therlm of the said gear'2l, the

arrow 2 of Figured; said plate being provided with a centrally posi- Figure 3 is a fragmentary detail view taken tloned indicating notch 38 which is employed on the line and as seen in the direction of the preferably with a line (not shown) which may be made on the periphery'of the ring I For all Figure 4 is a view similar to Figure 3, taken practical purposes, it will be understood the gear on the line and as seen in the direction of the 2| and its toothed ring 22 may be considered as arrow 4 of Figure 1. 1 one gear. v

' Referring now to the drawing, 9 designates The function and operation of the device may of which is fastened in any now be summarized as follows: 40

suitable manner, as by the screws It], a ring Assuming it is desired to advance or retard a To the fixed ring H, a gear segment I2 is fascylinder relatively to its coacting cylinder in tened by screws l3, the said segment I 2 being i order to obtain the desired register or vary the seated on a shouldered portion Id of the cylinder margin space on the printing sheet, the screws 3 and coactingly engaged with a pinion gear 3|, 32 are loosened and then the. adjusting mem- 5 I5 which is fastened to or formed integrally with her It is turned. thereby rotating the pinion IS an adjusting stud or member l6, rotatably ar and causing same to travel over the teeth-of gear ranged in a bushing or sleeve IT. The sleeve |1 l2 and consequently turning the gear 2| with is" provided with a flange l8, apertured to receive respect to the cylinder 9. After the adjustment 0 screws I9, threaded into? the face of' a gear 2|, desired, and as shownby the indicating means adjustably mounted on the shouldered portion mentioned above, is obtained, the screws3l, 32 14 of the cylinder above mentioned, the teeth are tightened and, the cylinder ismade ready of the gear 2| normally being in register or for further operation. k p

56 aligned with the teeth of a toothed ring orgear It will be understood that the gear (not shown) 22, which is mounted onan annular ledge or carried by a coacting printing cylinder and which 56 backlash or lost motion between the gear 2| and the meshing gear referred to, the screws 34 alone are loosened,.whereupon the gear 22 may be adjusted relatively to the gear 2| until the backlash is taken up to the desired extent, after which the said screws 34 are tightened. It will be observed that when the gear 2| is to be adjusted relatively to the cylinder, the screws 34 are left tightened, thereby moving the gear 22 with the gear 2|. The adjusting mechanism to accomplish this purpose has employed slotted gears and adjusting screws arranged to move the gear within the limits definediby studs or bolts in the slots, the said adjusting screws being each arranged with their axis normal to a radial line of the cylinder. On certain classes of machines where the end of the cylinder is closely adjacent the frame, however, 'there is insufficient space to manipulate a wrench for making this adjustment. By the present design and construction and by reason of the fact that the manually adjustable member l6 has its axis of rotation parallel to the longitudinal axis of the cylinder, an operating wrench or other suitable tool can be conveniently inserted between the cylinder and the adjacent frame to engage and turn the head of the adjusting member H3 and the other screws 3|, 32 alluded to above, which may be loosened and/or tightened during the operation of adjusting the cylinder relatively to its gear.

It will be observed that by the above means accurate register in printing can be obtained and adjustments whenever required, may be conveniently and expeditiously made in the manner indicated. In addition, backlash can taken up.

' It will be understood that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired the present embodiment be considered in all respects as illustrative and not restrictive, reference being had to the claims rather than to the foregoing description to indicate the scope of the invention.

What I claim is;

1. In a printing machine, the combination of a cylinder, a gear mounted on said cylinder, a gear segment fastened to the cylinder, and a r0- tatable pinion mounted with its axis parallel to the axis of said cylinder coactable with said gear segment for turning the gear relatively to the cylinder.

2. In a printing machine, the combination of a cylinder, gear means fastened to the cylinder, a gear rotatably mounted on the cylinder, a toothed ring mounted on the gear, a manually adjustable member coactable with the gear means for turn ing the gear relatively to the cylinder, and securing means releasable to permit angular movement selectively between-the gear, the toothed ring and the cylinder.

3. In a printing machine, the combination of a cylinder, gear means fastened to the cylinder, a gear rotatably mounted on the cylinder, a sec-. 0nd gear mounted on the first mentioned gear, a manually operable pinion engaged with said gear means for moving the said gear relatively to the cylinder, and indicating means on the gear and the cylinder for denoting relative angular movement between same.

4. In a printing machine,

the cylinder and coactable, operable member for producing relative angular be quickly a gear turnable on the cylinder, a second gear the combination of o a cylinder, a gear turnably mounted on said cylinder, a manually operable member rotatably arranged in said gear, and gear means secured to with the manually movement between the gear and the cylinder, said manually operable means having its axis of rotation parallel to the axis of rotation of the cylinder. 1

5. A combination asspecified in claim 4 and a toothed ring turnably mounted on said gear but normally fastened in alignedrelation therewith.

6. In a printing machine, the combination of a cylinder, gear means fastenedto the cylinder, other gear means arranged on the cylinder and rotatably adjustable relatively to eachother and the cylinder, and means coactable with said first mentioned gear means for adjusting said last mentioned gear means relatively to the cylinder.

'7. In a printing machine, the combination of a cylinder, a gear rotatably arranged on said cylinder, a second gear turnably mounted on the first mentioned gear and having gear teeth in normal aligned relation therewith, and means for angularly moving both of said gears together as a unit relatively to the cylinder, said last mentioned means having its axis of rotation parallel to the longitudinal axis of the cylinder.

8. In a device of the character described, the combination with a cylinder, gear means fastened to said cylinder, of a. pair of gears rotatably movable on the cylinder, means having its axis of rotation parallel to the axis of rotation of the cylinder, and coactable with said gear means for adjusting the said pair of gears as a unit relatively to the cylinder, and threaded means for loosening and fastening the plurality of gears.

9. In a printing machine, the combination of a cylinder, a gear segment fastened to said cylinder,

turnable on said first mentioned gear, means for adjustably securing both of said gears together as a unit and loosening them for relative rotational movement when desired, a manually adjustable member positioned within said gears and having an operating connection with the gear segment, and indicating means connected to one of the gears and coactable with means on the cylinder for denoting the extent of angular movement of the first mentioned gear relatively to the cylinder.

10. In a printing machine, the combination of a cylinder, a segmental gear secured to the cylinder, a pinion engaged with said segmental gear, a manually operable member fastened to said pinion, a gear rotatably mounted on thecylinder, a second gear normally secured to the first mentioned gear but adjustable relatively thereto when desired, means in both of said gears for accom,

coactable with meansarranged on the cylinderfor denoting relative angular movement between the first mentioned gear and the cylinder;

11. In a device of the character described, a cylindrical part, a gear part, said parts bein mounted for rotative movementrelatively to each other, a rotatable memberjournaled in one of said parts with its axis of rotation parallel to the axis of one of said parts, and a second member secured to the other of said parts, said second member and said rotatable member cooperating to rotate one part relatively to the other.

12. In a device of the character described, a cylindrical part, a gear part, said parts being mounted for rotative movement relatively to each the axis of one of said parts, a second member other, a rotatable member journaled in one of said parts with its axis of rotation parallel to secured to the other of said parts, said second member and said rotatable member cooperating to rotate one part relatively to theother, and means to indicate the amount of such relative movement.

13. In a device of the character described, a cylindrical part, a gear part, one of said parts being mounted for rotative movement relatively to the other, and means to rotate one of said parts relatively to the other including a member on one part and a member rotatably mounted to the other part, said rotatable member adapted to cooperate with the other member, when rotated in one direction, to rotate the part in which it is mounted in the same rotative direction relatively to the other part.

14. In a printing machine, the combination of a printing cylinder, a driving gear in axial alignment with and variably positionable angularly with respect to the cylinder, adjusting gear means on the cylinder, and other adjusting gear means on the gear, said cylinder, said gear and said adjusting gear means having their axes in a common plane.

15. In a printing machine, a rotatable cylinder part, a gear part for driving said cylinder, 9. gearsegment on one of said parts, a gear pinion having its teeth in mesh with the teeth of said segment and being rotatably mounted in the other of said between said parts. I

16. In a printing machine, a rotatable cylinder part, a' gear part for driving said cylinder, a gear segment on one of said parts, a gear pinion havingits teeth in mesh with the teeth 01' said segment and being rotatably mounted in the other of said parts and having its axis of rotation parallel to the axis of one of said parts to drivingly connect said parts for rotative adjustment in respect to each other.

17. In a printing machine, a rotatable cylinder part, a gear part for driving said cylinder, a gear segment on one of said parts, a gear pinion having its teeth in mesh with the teeth of said segment and being rotatably mounted in the other of said parts and having its axis of rotation parallel to the axis of one of said parts to drivingly connect said parts for rotative adjustment in respect to each other, and means to indicate the amount of rotative adjustment between said parts.

WILLIAM F. HUCK. 

